Details of hundreds of US nuclear sites and activities have been accidentally made public.
The New York Times has reported that the confidential document, which included information about hundreds of US civilian nuclear sites and locations of fuel for nuclear weapons was mistakenly made public this week.
The document had been sent by US President Barack Obama to Congress for review last month but appeared on the Government Printing Office website on Monday and was removed on Tuesday after an inquiry from the NY Times.
It was due to be forwarded to the International Atomic Energy Agency as part of a US campaign to open itself to stricter inspections in hopes of persuading other countries, such as Iran, to do the same.
The document was declared as ‘Sensitive but Unclassified' by President Obama, whose covering letter stated: “The enclosed draft declaration lists each site, location, facility, and activity I intend to declare to the International Atomic Energy Agency (IAEA), and provides a detailed description of such sites, locations, facilities, and activities, and the provisions of the US-IAEA Additional Protocol under which they would be declared.”